Results 11 to 20 of about 15,154 (219)

Prevalence of the crayfish plague pathogen Aphanomyces astaci in populations of the signal crayfish Pacifastacus leniusculus in France: evaluating the threat to native crayfish.

open access: yesPLoS ONE, 2013
Aphanomyces astaci, the crayfish plague pathogen, first appeared in Europe in the mid-19(th) century and is still responsible for mass mortalities of native European crayfish.
Lenka Filipová   +4 more
doaj   +6 more sources

Simultaneous detection of invasive signal crayfish, endangered white-clawed crayfish and the crayfish plague pathogen using environmental DNA [PDF]

open access: yesBiological Conservation, 2018
ABSTRACTAquatic Invasive Species (AIS) are important vectors for the introduction of novel pathogens which can, in turn, become drivers of rapid ecological and evolutionary change, compromising the persistence of native species. Conservation strategies rely on accurate information regarding presence and distribution of AIS and their associated ...
Chloe Victoria Robinson   +4 more
openaire   +4 more sources

Invasive signal crayfish and native noble crayfish show trophic niche shrinkage in sympatry [PDF]

open access: yesNeoBiota
Studying the coexistence of native species and invasive species with similar functional traits, habitat usage, and feeding habits is crucial for understanding the dynamics of invasion and ecological changes in the invaded ecosystem.
Fabio Ercoli   +5 more
doaj   +4 more sources

The signal crayfish is vulnerable to both the As and the PsI-isolates of the crayfish plague [PDF]

open access: yesKnowledge and Management of Aquatic Ecosystems, 2014
The carrier status and possible elevated tolerance of the signal crayfish (Pacifastacus leniusculus) against the crayfish plague disease agent (Aphanomyces astaci) has been speculated for several decades.
Aydin H.   +5 more
doaj   +3 more sources

Color variation in signal crayfish Pacifastacus leniusculus. [PDF]

open access: yesCurr Zool, 2021
Abstract External coloration in animals depends on the interaction of several different factors including the genetics and epigenetics processes that underlie the color expression, the mechanisms of color perception, and the general mechanisms controlling color evolution and function.
Sacchi R   +4 more
europepmc   +5 more sources

THE EFFECT OF THE LARGE-SCALE INTRODUCTION OF SIGNAL CRAYFISH ON THE SPREAD OF CRAYFISH PLAGUE IN SWEDEN [PDF]

open access: yesKnowledge and Management of Aquatic Ecosystems, 2006
Since 1907, coinciding with the arrival of the crayfish plague, the noble crayfish (Astacus astacus) has steadily declined in Sweden. To substitute the noble crayfish fishery lost, mainly due to the plague, and since the species is highly susceptible to ...
BOHMAN P., NORDWALL F., EDSMAN L.
doaj   +2 more sources

Crayfish plague affects juvenile survival and adult behaviour of invasive signal crayfish. [PDF]

open access: yesParasitology, 2020
AbstractThe spread of invasive, non-native species is a key threat to biodiversity. Parasites can play a significant role by influencing their invasive host's survival or behaviour, which can subsequently alter invasion dynamics. The North American signal crayfish (Pacifastacus leniusculus) is a known carrier ofAphanomyces astaci, an oomycete pathogen ...
Thomas JR   +7 more
europepmc   +7 more sources

Comparing the effects of introduced signal crayfish and native noble crayfish on the littoral invertebrate assemblages of boreal lakes [PDF]

open access: yesFreshwater Science, 2015
AbstractThe introduced North American signal crayfish Pacifastacus leniusculus (Dana) has replaced the native noble crayfish (Astacus astacus) in many European freshwaters and can be considered a new component of these ecosystems. The 2 species are apparently similar in many respects, but their ecological equivalence is uncertain and has been little ...
Ercoli, F.   +5 more
openaire   +6 more sources

Daily activity rhythms, chronotypes, and risk-taking behavior in the signal crayfish. [PDF]

open access: yesCurr Zool, 2022
Abstract Consistent inter-individual differences in daily activity rhythms (i.e., chronotypes) can have ecological consequences in determining access to food resources and avoidance of predators. The most common measure to characterize chronotypes in animals as well as humans is the onset of activity (i.e., early or late chronotypes).
Sbragaglia V, Breithaupt T.
europepmc   +6 more sources

Chronic crayfish plague infection and eroded swimmeret syndrome in Lake Saimaa (Finland) signal crayfish [PDF]

open access: yesFreshwater Crayfish, 2017
Abstract We present data and results from a 9-year survey (2009 – 2017) of the Lake Saimaa signal crayfish population in Finland. This population has a history of chronic infection with Aphanomyces astaci. It has now been discovered that female signal crayfish from Lake Saimaa suffer from various stages of eroded swimmeret syndrome (ESS), and male ...
Jussila Japo   +2 more
openaire   +4 more sources

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